3 years ago

Helppp with these 2 questions sorry.

Chemistry

1 answer:

Nataly_w [17]3 years ago

7 0

Answer:

Can i be Branliest

Explanation:

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List the 9 foods that weaken your immune system and explain why.<br><br> NO LINKS

aniked [119]

Answer:

salty foods

Explanation:

Salty foods like chips, frozen dinners, and fast food may impair your body's immune response, as high salt diets may trigger tissue inflammation and increase the risk of autoimmune diseases.

3 0

2 years ago

Aspirin (C9H8O4) is synthesized by reacting salicylic acid (C7H6O3) with acetic anhydride (C4H6O3) according to the reaction: C7

Lunna [17]

Answer:

$7.39\times 10^{3}g$ of acetic anhydride is needed

Explanation:

According to balanced equation, 1 mol of salicylic acid completely reacts with 1 mol of acetic anhydride

Number of moles = (mass)/(molar mass)

Molar mass of acetic anhydride = 102.09 g/mol

Molar mass of salicylic acid = 138.121 g/mol

So, $1.00\times 10^{4}g$ of salicylic acid = $\frac{1.00\times 10^{4}}{138.121}moles$ of salicylic acid

Hence, $\frac{1.00\times 10^{4}}{138.121}moles$ of salicylic acid reacts completely with $\frac{1.00\times 10^{4}}{138.121}moles$ of acetic anhydride.

So, mass of acetic anhydride needed = $\frac{1.00\times 10^{4}}{138.121}\times 102.09g$ = $7.39\times 10^{3}g$